Improvement in corset-springs



UNITED STATES kPATENT OFFICE.

A. BENNETT, OF NEW YORK, N. Y.

IMPROVEMENTIN Conseil-spulNes.A

Specification forming part of Letters Patent No. 96,665, dated November 9, 1869.

To all 'whom it may concern:

Be it known that I, A. BENNETT, No. 2196 Third Avenue, in the city, county, and State of New York, have invented a new and usef'ul Improvement in Corset Springs; and Ido hereby declare that the following is a full, clear, and exact description of the same, reference bein-g had to theannexed drawings, making a part thereof, in which- Figure 1 is a front View Fig. 2,arear view, and Fig. 3 a vert-ical section at the line A a of Fig. 1. j

The same letters refer to similar parts in each of the iigures. y

My invention relates to that class of corsetsprings which are made of double plates of tempered steel;v and it consists in making the outer steel plate a little longer than the inner one, and lapping or bending the ends of the outer steel o-ver the ends-of the inner steel, whereby I avoid the use of ferrules which have been used to secure the ends of the two steel plates together, and which have been found to cause much inconvenience to the wearerV and are destructive of apparel.

In the annexed drawings, a a represent the two outer' plates, of tempered steel, of my said improved corset-spring; and b b, the two inner plates, of tempered steel. The outer steels are made somewhat longer than the inner ones. Before securing the outer and inner steels together, the eyes cc c are riveted to one of the outer steels in the usual way, and the pins d d d secured to the other outside steel. The outer and inner plates of steel are then tempered in the usual way for the purposeof giving elasticity and strength to the main body ofthe spring, excepting the tips of the outer plates, which are to be left untempered, so that L they may be readily bent over and lap the ends ofthe inner plates. The great advantage of this plan of not tempering the tips or ends of the outer plates is that if there should used the untempered ends can be made to conform to the tempered ends of the inner plates, which could not be done if they were tempered, as the slightest blow would break them. If, however, the outer plates were tempered from end to end, the temper from the ends could be drawn by heating them to a cherry-red heat and then allowing them to cool; but I prefer the former plan as being more simple and economical. The outside steels are then laid on' the inner ones, and the ends of the outer steels are then bent over so as to lap the ends ofthe inner steels and hold the two steadily together, and yetpermit the inner steels to slide freely at either end when under pressure, a slight space being left for that purpose between the ends ofthe inner steels and the inner part ofthe lap. It will be obvious, however, that the inner steels may be made somewhat longer than the outer ones, soA as to he lapped over them, instead ofthe above method. In this case the outertips or ends of the inner plates are to be left untempered, so that they may readily be bent over and lap the ends of the outer plates. l

For further holding the two steels together I employ one or more clamps, c, made of thin sheet-metal; butthese clamps should notgrasp the'plates so tightly as to prevent the slight sliding of the inner steels, or vice versa.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent in the construction of corsetsprings,

The lapping or bending the ends ofthe outer steels over the ends of the inner steels, or vice versa, for the purpose herein described.

, A. BENNETT.

Witnesses:

J oruvv RATHBONE, Jr., A. B. BISHOP.

be any variation in the thickness of the metalv 

